Glycosylation of the SARS-CoV-2, SARS-CoV,
and MERS-CoV spike proteins.
(A) Schematic representation of the SARS-CoV-2, SARS-CoV, and MERS-CoV
protein open reading frames with glycosylation sites indicated (refs (94 and 95)). Adapted with permission from
ref (95). Copyright
2020 Watanabe et al. http://creativecommons.org/licenses/by/4.0/. (B) Moss surface representation of SARS-CoV-2 S protein glycosylation
from molecular dynamic simulations performed by Grant et al. (ref (101)). Glycans are shown in
ball-and-stick representations and colorized accordingly: M9, green;
M5, dark yellow; hybrid, orange; complex, pink. The S protein surface
(6VSB) is colored
according to antibody accessibility from black (least accessible)
to red (most accessible). The RBD in the up conformation is circled
in blue. Adapted with permission from ref (101). Copyright 2020 Grant et al. http://creativecommons.org/licenses/by/4.0/. (C) The same as in panel B, but for SARS-CoV, SARS-CoV-2, and MERS-CoV
S proteins and with available S protein–antibody structures
overlapped.